I just decided to make my own version of the Republic for Star Wars Battlefront 2 2005 (highly recommend turning off friendly fire)
installation: unpack the files from the RAR archive, and put them in the path: your battlefront folder in the data / lvl_pc / side folder, and then replace the rep and repshell files with the ones that were in the archive
wow! didnt realize you made mods! highly recommend this side mod